Speed-regulator for hydraulic presses.



No. 766,007. PATENTED JULY 26, 1904. R. WENZELIDES. SPEED REGULATOR FORHYDRAULIC PRESSES.

APPLIOATION FILED MAY 28, 1904. NO MODEL.

2 SHEETSSHEET 1.

fibwsses I WWW PATENTED JULY 26, 1904.

R. WENZELIDES. SPEED REGULATOR FOR HYDRAULIC PRESSES.

APPLICATION FILED MAY 28,1904.

2 SHEBTSSHEET 2.

N0 MODEL.

Whwsses: [lave/Jar M. 4 2 W Correction UNITED STATES Patented July 26,1904:.

RUDOLF WVENZELIDES, OF NEWV YORK, N. Y.

SPEED-REGULATOR FOR HYDRAULIC PRESSES.

SPECIFICATION forming part of Letters Patent No. 766,007, dated July 26,1904;.

Application filed May 28,1904. gerial No. 210,218. (No model.)

To all whom it may concern.-

Be it known that I, RUDoLF TENZELIDES, a citizen of Austria, residing atNew York city, Manhattan, county and Stateof New York, have invented newand useful Improvements in Speed-Regulators for Hydraulic Presses, ofwhich the following is a specification.

This invention relates to a speed-regulator for turbines and otherhydraulic motors which is of high sensitiveness and insures a quick andreliable regulation of the motor.

In the accompanying drawings, Figure l is a longitudinal section througha speed-regulator embodying my invention; Fig. 2, a detail verticalsection through the governorspindle and adjoining parts; Fig. 3, acrosssection on line 3 3, Fig. 2; Fig. 4, a cross-section on line i 4,Fig. 2; Fig. 5, a cross-section on line 5 5, Fig. 2; and Fig. 6, amodification of Fig. 2.

The letter n represents a cylinder containing a piston b, which may beguided in suitable manner. The drawings show the cylinder provided witha reduced section a, in which a reduced piston-section Z) is adapted toslide. To piston-section Z) is pivoted at b one end of a link 0, theother end of which is connected at (Z to the free end of a lever (Zrigidly mounted upon a regulating rock-shaft (Z. The shaft (Z .isconnected in suitable manner to means (not shown) for setting the bladesof the turbine, and thereby regulating the quantity of water admitted tothe same.

Upon cylinder (0 is mounted a valve-box 0, containing ahollowslide-valvef. The inner cylindrical side of valve-box c is provided with twocircumferential grooves or channels 6 6 The channel 0 communicates by apipe r with one end of cylinder (0, while channel 0 communicates by apipe/t with the opposite end of the cylinder. The slide-valvef isprovided with an outer circumferential groove f, so as to form an upperflange f and a lower flange The thickness of flangesfy" corresponds tothe width of channels 6' 6 respectively,

while the distance between the channels 6 6 corresponds to the width ofvalve-groove f. Into valve-box 6 opens an inlet-pipe 6, arrangedintermediate channels 6 e and communicating with a pump or other means(not shown) for supplying oil or any other suitable'medium underpressure. The lower section of valvebox 0 is provided withan oil-outletpipe j. The stem f of valve f engages at Z? a lever k, pivoted at 75 toa bracket of valve-box c. To lever A; is pivoted at Z one end of a linkZ, the other end of which is pivoted at m to a lever m, in fluenced bythe centrifugal governor n in the following manner: The governor n,which may be of any suitable construction, receives rotary motionthrough bevel-gear n from the power-shaft of the turbine in the usualmanner. The grooved sleeve a of governor a is embraced by a ring 0,which is connected to a frame 0, as at 0 To the lower end of frame 0 isbolted a plug tapped into a hollow spindle p, which is open at thebottom. The spindle p is telescoped by a tubularsleeveq,provided at itsupper end with studs 1 which are engaged by lever on, hereinabovereferred to. The sleeve Q is integral with a plunger g slidable within acylindrical case r, the bottom (03 of which is formed by a suitablebracket a of cylinder at. This bottom, as well as the top of case r, isperforated to snugly embrace sleeve q. The case r is provided with acompressed-oil-supplypipe z",communicating with inlet-pipe i and openinginto an inner circumferential groove or channel 1' of case 9".

The plunger (1 is provided with an outer cir-' cumferential groove g theheight of which corresponds to that of channel 7*. Two diametricallyopposite perforations or slits if lead from groove g to the bore ofplunger the height of slits (f being equal to that of groove Q3.Directly above and below plunger Q2 sleeve q is provided, respectively,with a pair of upper perforations g g and a pair of lower perforations qq. The upper perforations Q5 establish communication between theinterior of case 9" above plunger g and an upper circumferential groovep of spindle 1). Likewise the lower perforations q establishcommunication between the interior of case 0 below plunger Q2 and alower circumferential groove 12 of spindle 12. Intermediate grooves 1919 there is formed a collar p, that corresponds in height to the heightof slits At a distance above perforations g sleeve 4 is provided with apair of upper perforations or openings Q7 Q7 and below perforations pwith a pair of lower openings q q*. The upper openings are adapted tocooperate with a pair of upper exhaust-perforations p of spindle 12,while the lower openings g are adapted to cooperate with a pair of lowerexhaust-perforations p of spindle p. The perforations p p, which aresubstantially of the same height as openings Q7 q, are so located thatin the normal position of spindle p and sleeve q the bottom of openingsQ7 is in alinement with the top of perforations 9 while the top ofopenings (1 is in alinement with the bottom of perforations To lever mis pivoted at s a link .9, which in turn is pivoted at s to one arm of adouble lever t, fulcrumed at a to cylinder-section a. The other arm oflever t is pivoted at u to a link it, which is pivoted at a to a lever(Z3, fast on rock-shaft (Z.

The operation is as follows: Cylinder a, valve-box a, case r, and theconnecting-pipes are filled with oil under pressure. While the turbineworks at the proper speed, slide-valve f, spindle j), and sleeve 9 arein the positions shown in Figs. 1 and 2. In this normal position flangesf f of slide-valve f will cover grooves e 6 respectively. Likewisecollar 72* of spindle peovers slits g of sleeve 4 while perforations fpare covered by sleeve 1. If the turbine works too fast, governor 02/will cause sleeve 72? to raise and take alongframe 0, together withspindle 22. By this upward movement of spindle p collar p will be raisedwithin plunger (1 so as to uncover groove 12 of spindle p.Simultaneously perforationsp" will come into communication with openings9 In this way oil under pressure will be free to flow from supply pipe2" through grooves '1 slits and groove 72 into the interior of case 7'below plunger Q2. This inflow of oil under pressure beneath plunger 9will raise the same, the oil above the plunger being discharged throughopening g perforation p and hollow spindle p. The upward movement ofplunger (1 will, by sleeve 9 and studs 1 be transmitted to lever m, soas to swing the latter upward on pivot s. The result of this upwardmovement of lever m is a corresponding raising of slidevalve f by meansof link Z, lever 70, and valvestem f". Owing to this movement of valvef, flanges f f will uncover channels 6 6 respectively. In this way oilunder pressure will flow from supply-pipe through groove f, channel 6',and pipe g into cylinder a behind piston Z. This inflow of oil willcause the piston to advance in the direction of the arrow, Fig. 1, whilethe oil in front of the piston is simultaneously discharged through pipe7, channel 6 lower section of Valve-box e, and outlet-pipe 7'. Theforward movement of piston b will, by link a and lever 6Z2, rockregulating-shaft (Z to set the blades of the turbine. The rockingmovement of shaft cZ will,

by lever (Z link a, lever 25, and link 8, swing lever m downwardly onstuds (1. The result of this downward motion of lever m will be acorresponding downward movement of slidevalve f by means of link Z,lever 70, and valvestem f By this descent of valve f flanges f willagain cover channels 0' c respectively, to stop the inflow of oil and tothus prevent overregulation. If the turbine works too slow, the spindlepwill be lowered to uncover groove and to bring perforations 1) intocommunication with openings g. In this case oil under pressure will flowfrom pipe Z through grooves 7" Q3, slits g and groove p into theinterior of case a above plunger g This will cause the latter todescend, the oil underneath plunger Q2 being discharged through openingg perforations p, and hollow spindle p. The descent of plunger (1 willbe transmitted to lever m by studs (1, so as to swing lever m downwardlyon pivot s. The valve f will be correspondingly lowered by the meansdescribed, so that flanges f f will uncover channels 6 0 respectively.Oil under pressure will now flow from pipe Z through groove f, channel 0and pipe it into cylinder a in front of piston Z. This inflow of oilwill cause the piston to recede, the oil behind the piston beingsimultaneously exhausted through pipe 9, channel 0', upper portion ofvalve-box a, hollow valve f, lower portion of box 6, and discharge pipe7'. The back stroke of piston 5 will, by link a and lever (Z rock theregulating-shaft (Z in a direction opposite to that previously describedto correspondingly set the blades of the turbine. The rocking movementof shaft cZ will by the mechanism described swing lever m upwardly onstuds q. This upward motion will betransmitted to valve f, so that thechannels a c are closed and the inflow of oil is stopped.

Fig. 6 illustrates a modification of my invention, the oil flowingthrough case '2' in the opposite direction. The oil-inlet pipe i opensinto a box w, the top and bottomof which snugly embrace hollow spindlep, which is closed at both ends. Within box w spindle p is provided withopenings 10 to conduct the oil from the box into the interior of thespindle. The portion of the latter which is contained within case r isprovided with a pair of upper perforations 79 p and a pair of lowerperforations p p. The perforations p p are at their bottom normally inalinement with the upper sides of openings g of sleeve 1 while theperforations 19 9 are at their top in alinement with the lower sides ofopenings q q of sleeve 9. Between the perforations 12 the spindle p isprovided with acircumferential groove p the height of which correspondsto the height of plunger 9 With the circumferential groove 0* of case 0communicates an outlet-pipe If now, for instance, spindle p is raised bythe governor n, oil under pressure will flow from pipe 2" through box w,openings p hollow spindle p, perforations p, openings q into theinterior of case 0 below plunger g so as to raise the same. The oilabove plunger (1 is simultaneously discharged through groove p slits q,grooves g r, and outlet 00.

It will be seen that by my construction the studs (1 form fixed pivotsfor lever m, while the latter is swung by link 8. These studs q aretemporarily stationary, because they are made integral with plunger (1which is held in an immovable position as long as collar p covers slits(1*; but this temporary fixing of studs 9 does not interfere with thesensitiveness of the governor,as its spindle can be freely moved up anddown within sleeve g. This free movement of spindle p is immediatelyfollowed by a corresponding movement of the plunger g together withstuds g, by the action of the compressed oil in the manner described inorder to actuate the slide-valve.

The time that elapses between the motion of spindle p and the motion ofsleeve q may practically be left out of consideration, as the volume ofcase r is comparatively very small, so that the oil after having beenadmitted to the same acts instantaneously to operate plun ger (1 It willbe seen that by my invention the governor is not influenced by therockshaft (Z while returning the controlling-valve f to its normalposition. During this movement of the rock-shaft the fulcrum g of leverm is fixed in position independently of governor n by plunger (12 andthe oil contained within case 0*. Even in case the governorspindle isnot at rest while rock-shaft d returns the slide-valve f the pressureexerted upon fulcrum q is taken up by the pressure of the oil withincase r and is not transmitted to the governor. In this way I am enabledto employ a governor of great sensitiveness, so that a quick andreliable regulation of the turbine may be insured.

WVhat I claim is 1. In a speed-regulator, the combination of a governorwith a hollow spindle connected thereto, a sleeve having a plunger andtelescoping the spindle, a case surrounding the sleeve, a slide-valve,and means for operatively connecting the sleeve to said valve,substantially as specified.

2. In a speed-regulator, the combination of a sleeve having a perforatedplunger with an inclosed hollow spindle having a pair of circumferentialgrooves and an intermediate collar which is adapted to register with theplunger-perforations, a governor connected to the spindle, aslide-valve, and means for operatively connecting the sleeve to saidvalve, substantially as specified.

3. In a speed-regulator, the combination of a sleeve having a groovedperforated plunger with an inclosed hollow spindle having apair ofcircumferential grooves and an intermediate collar which is adapted toregister with the plunger-perforations, a case surrounding the plungerand having a groove adapted to register with the plunger-groove, and agovernor connected to the spindle, substantially as specified.

4:. In a speed-regulator, the combination of a perforated sleeve havinga grooved perforated plunger with an inclosed grooved hollow spindlehaving perforations adapted to register with the sleeve-perforations,the spindlegroove being adapted to communicate with theplunger-perforation, a case surrounding the plunger and having a grooveadapted to register with the plunger-groove, and a governor connected tothe spindle, substantially as specified.

5. In a speed-regulator, the combination of a perforated sleeve having agrooved perforated plunger with an inclosed hollow spindle having a pairof circumferential grooves and an intermediate collar which is adaptedto register with the plunger-perforations, a case surrounding theplunger and having a groove adapted to register with the plunger-groove,and a governor connected to the spindle, substantially as specified.

6. In a speed-regulator, the combination of a regulating rock-shaft,with a piston operatively connected thereto, a cylinder surrounding thepiston, a valve-box communicating with the cylinder, an inclosed valve,a lever operatively connected to the valve, means for operativelyconnecting said lever to the rockshaft, a sleeve to which the lever ispivoted, a plunger on the sleeve, a hollow spindle slidable within thesleeve, a governor connected to the spindle, a case surrounding theplunger, and means for admitting a pressure medium to the case above andbelow the plunger, substantially as specified.

Signed by meat New York city, (Manhattan,) New York, this 25th day ofMay, 1904:.

. RUDOLF WENZELIDES.

Witnesses:

WILLIAM SOHULZ, FRANK v. BRIESEN.

in Letters Pate i It is hereby certified that in Letters Patent No.766,007, granted July- 26, 1904, upon the application of RudolfWenzelides, of New York, N. Y., the title of the invention waserroneously written and printed Speed-Regulators for Hydraulic Presses,whereas the said title should have been written and printedSpeed-Regulators for Hydraulic Motors; and that the said Letters Patentshould be read with this correction therein that the same may conform tothe record of the case in the Patent Office.

Signed and sealed this 16th day of August, A. D., 1904.

E. B. MOORE,

